net: Stop using base::WorkerPool from UploadFileElementReader

webkit/glue/resource_request_body.cc

Index: webkit/glue/resource_request_body.cc
diff --git a/webkit/glue/resource_request_body.cc b/webkit/glue/resource_request_body.cc
index b75666f55afe045e2249124ef1e752dd4730dc1e..ace0772403ac29555f31ff43faa63e5f88cf78f3 100644
--- a/webkit/glue/resource_request_body.cc
+++ b/webkit/glue/resource_request_body.cc
@@ -41,8 +41,10 @@ class BytesElementReader : public net::UploadBytesElementReader {
 class FileElementReader : public net::UploadFileElementReader {
  public:
   FileElementReader(ResourceRequestBody* resource_request_body,
+                    base::TaskRunner* task_runner,
                     const ResourceRequestBody::Element& element)
-      : net::UploadFileElementReader(element.path(),
+      : net::UploadFileElementReader(task_runner,
+                                     element.path(),
                                      element.offset(),
                                      element.length(),
                                      element.expected_modification_time()),
@@ -93,7 +95,8 @@ void ResourceRequestBody::AppendFileSystemFileRange(
 
 net::UploadDataStream*
 ResourceRequestBody::ResolveElementsAndCreateUploadDataStream(
-    BlobStorageController* blob_controller) {
+    BlobStorageController* blob_controller,
+    base::TaskRunner* task_runner) {
   // Resolve all blob elements.
   std::vector<const Element*> resolved_elements;
   for (size_t i = 0; i < elements_.size(); ++i) {
@@ -114,7 +117,8 @@ ResourceRequestBody::ResolveElementsAndCreateUploadDataStream(
         element_readers.push_back(new BytesElementReader(this, element));
         break;
       case Element::TYPE_FILE:
-        element_readers.push_back(new FileElementReader(this, element));
+        element_readers.push_back(
+            new FileElementReader(this, task_runner, element));
         break;
       case Element::TYPE_FILE_FILESYSTEM:
         // TODO(kinuko): Resolve FileSystemURL before creating UploadData.